Loom-shuttle.



P. FERRARI.

LOOM SHUTTLE.

APPLICATION man $591.10. 1914.

Patented Nov. 23, 1915.

LRLR.

" raseuimo EERRaR-i, 0E EaLE RIVER, MASSACHUSETTS.

Eooiiii-SETELE.

Specification of Letters Patent.

Application led September 10, 1914. Serial No. 861,060.

To all ywhom t may concern.'

Be it known that I, PASQUINO FERRARI, subject of the King of Italy, residing at Fall River, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Loom-Shuttles, ofwhich the following is a specification.

My invention relates to new and useful improvements in loom shuttles and has particular reference to -an improved han threading device therefor.

One of the principal and more general objects of my invention is to provide means whereby the shuttle may be readily threaded by hand with a minimum expenditure of time.

A further object of my invention in this connection is to provide a threading device which is located in the threading recess of the shuttle and is provided with a threading beak or lip so arranged with relation to the delivery terminal of the eyelet that the thread may be quickly applied to the eyelet and passed through the side of the sh-uttle bymerely being looped and then drawn around the threading beak.

A further object of my invention is to eliminate the necessity of sucking the thread through the threading recess and delivery kerf adjacent the beak of the shuttle, which has heretofore existed in loom shuttles.

An object of equal importance with the foregoing is to so design the threading device that it will be Vno longer necessary to form, as is now the custom, a diagonally extending delivery kerf emerging at its terminal into the face of the shuttle, the shuttle being provided instead with an opening which emerges at one side in the face of the shuttle and at its otherside into the thread.

ing recess.

A still. further object of my invention is to provide a threading device which may be cheaply formed from a single sheet metal blank and may be easily and readily inserted in or removed from the` threading recess of the shuttle.

Another object is to provide the deliveryA terminal of the thread eye which is formed in the same blank constituting the threading device, with a guard so arranged as to offer little or no resistance to the entrance of the thread into the eyelet during the threading operation but so located that it will make it impossible for the thread to duced to practice, and throughout the several views of which similar reference charters designate corresponding parts, F igiire 1 is a perspective view illustrating the threading device in position within the thread recess; Fig. 2 is a top plan view of the shuttle; Fig. 3 is a side view of the shuttle partly in section. Fig. 4 is a detailed perspective view of the threading device removed from the shuttle; Fig. 5 is a section on the line 5 5 of Fig. 4; and Fig. 6 is a detailed plan view of the blank from which the threading device is constructed.

In the accompanying drawings I have illustrated my threading device which is designated as an entirety in Fig. 1 by the letter A as applied to a shuttle B which is for the most part constructed on standard lines iiicluding as it does a longitudinally extending opening 10 within which a cop or bobbiii 11 is removably held by a spring holding device 12 `of well-known construction. At the forward end of the shuttle and in communication with. the cop lchamber 10 is formed a threading recess designated generally in Fig. 1 by the numeral 13. lVithin this recess 13 is removably positioned the threading device A.

Before further describing the exactforrn of the threading recess 13 and the manner in which the member A is positioned therein I deem it advisable to submit a detailed description of the sheet metal blank from which the threading device is formed. For this purpose therefore reference will now be had particularly to Fig. 6. It will there be seen that the end edges of the blank, indicated at 14 and 15, are straight and extend in parallel relation to each other. 'The rear edge of the blank, indicated at 16, is straight for a portion of its length but ad- ]Patented Nov.. 23, 1915.

ioo

llllll fis 1n realit edge 15,

efines -a triangular tongue 20. Thls ton ment of the threadfrom the leye of the device. In this connection it may be well to explain that the eye of the threading device which is indicated at 21 in Fig. l, is defined bythe straight edge portion when the shaping of the blankhas been completed. The forward edge of the 'blank is as indicated at 22 cut yalong a curved line .which is substantially seml-circulan The inner terminal of the curved edge 22 merges into a straight edge 24 which latter defines one v side of a guide slot 25 through which the slot 25 is rounded so that the thread'whichbears thereagainst during the .use of the shuttle will not beliable to 4be Severed as might be the case-.were the inner terminal of the slot straight.- The outer end fof-the straightfedge 29 which defines the rear side of the slot 25-iscurved asa-U30, and merges into the forward transverseedge 31 of an -attaching ear 32, producinga rounded nose indicated at 33. This attaching ear 32 is adapted to. be employed in connection with va pin 34 in securing one end of the threading device V in proper position within the recessyl3as will be hereinafter more fully explained; `At the outer end ofthe blank -th'ere is formeda substantially-U-shapedkerf 35 which aswill beseen frees a tongue 36. This tongue 36' is apertured as indicated at 37 and constitutes the f attaching .ear by which the outer terminal of the device is Apin, indisecured within the shuttle. cated at 38, is passed through the shuttle and through the member 36- as will also be A hereinafter explained.

vIt is now to be noted that the outer end vof the curved edge 22 merges, as indicated vatf39, into the straight edge -15 at a point which is locatedin the rear` of the rounded end 26 of the beak. The purpose in this particular formation `of the edge 22 will be described in that portion of the .specificationdevoted toa description of the use -of the threading device'.

From kthe `blank above described the gue 20 is adapted, when rolled properly 1n a manner -to behereinafter more fully described, to form aguard member so located that it. will prevent the displaceterminal, indicatedat 12,

threading device as shown in detail in Fig. 4 is formed. Upon reference to this figure it will be seen that during the manufacture of the article theblank has been rolled over a rod-like former which is applied transversely` to the blank alon the dotted line 40 so as to produce the tu ular portion 41. In this connection it will'be observed that the former is applied to the under face of the blank and that the real` edge portion 16 is then rolled downwardly and thence aro-und the former so as to dispose the straight edge 16, after the rolling of the blank, in advance of the dotted line 40. Thus the guard member 20 which is also rolled into substantially annular form, as shown in Figs. 4 and 5, is disposed so that its apex portion projects within the opening defined by the kerf 35. In this connection it will be observed that during the formation of the blank the tongue 36 is bent upwardly and then directed at an upward and rearward angle so as to leave the opening defined bythe kerf 35 unobstructed.

he apex portion of the guard 20 extends as best shown in Figs. 4 and 5, to a point slightly above the upper -face of the base portion of the beak 27. It is now to be explained that the guard member 20 is rolled in such manner that the curved edge 19 extends inwardly and diagonally from the edge 15. After the tubular member 4l has been formed, the attaching ear 36 has been bent to extend rearwardly, and the guard 20 has been properly shaped and disposed with its apex extending into the kerf 35, the beak 27 is shaped. As previously stated the member 27 is of aspatulate shape being' transversely and longitudinally curved.

Before describing the manner in which the threading device A is positioned in the recess 13 it may be well to particularly describe the formation of this recess. As will be seen upon reference to Figs. 1, 2 and 3, the recess is in plan torpedo shaped. The one wall of the recess indicated at 41 extends in a vertical plane and longitudinally withA respect to the shuttle. At its forward this Wall curves inwardly toward the center of the shuttle until it meets the inner end of the wall 43 at the point 44. The wall 43 is substantially flat throughout the major portion of its area vand slopes diagonally toward the face 'of the shuttle in a downward and rearward direction, as will be best seen upon an inspection ofFigs. 1 and 3. The outer portion of the wall 43 defines the bottom of a threaddelivery opening 45 which is formed in theside of the shuttle. At the rear end of the wall 43 is a countersunk transverse channel 46 which is adapted to receive the tubular portion and the eye 21 of the guard as will be seen by reference to'Figs. 1 and 3.

^ anemie At this point it should be observed that the rounded surface and will not therefore be frayed. It will also be noted that the inner end 28 of the thread slot 25 is disposed below the upper face'of the shoulder 47.

When the threading device is positioned within the threading slot 13, the cylindrical or tubular portion 41 is disposed withinthe transverse channel 46. as will be best seen upon reference to Fig. 3. As has been previously explained the threading device is secured within the recess by the pins 34 and 38 which are inserted` through theapertures nection it is to be noted that'the ear 33 is received within a kerf which is formed in the wall y41 of the recess in the manner indicated in dotted lines in Fig. 2. It will now be noted that the threading beak 27 is curved so that its major portion extends in parallel spaced relation to the downwardly and rearwardly inclined wall 43 of the threading recess. The terminal portion or apex 26 of the beak, however, is bent so that instead of projecting into the wall 41, it lies in approximately parallel relation thereto. At this point it may be well to explain that the lower edge of the wall 41 is slightly curved so as to merge into the curved or rounded upper portion of the wall 43 as indicated at 49 in Fig. 3. When the threading device has been positioned within vthe recess the guide slot 25 extends diagonally with respect to the longitudinal axis of the shuttle. The thread delivery eye 21 which is defined by the edge portion l5 of the device, opens through the face of the shuttle and is disposed, as has been pre- -vi'ously explained, within the thread delivery opening'or passa e 45.

The manner in w ich. the device above described may be employed in accomplishing the threading of the shuttle will now be readily appreciated, for it will be seen that if the thread is looped and engaged with the apex portion of the beak, a pull exerted on the free terminal of the thread will cause y the same to ride around thecurved edge 22. When the thread reaches the'outer terminal of this curved edge 22, it of course enters the openeye defined by the straight edge 15. The operator may then grasp with his finger or with some suitable instrument the loop portion which has been thus disposed within the eye and withdraw from the cop chamber the should now be noted that the thread may readily enter the eyelet since the convex face of the guard 20 is presented to it as it (the thread) rides down the curved edge 32. However, when the thread passes completely into the eyelet after having moved over the apex of the guard member 20 it will'be pre-. vented'from withdrawal fromthe eye sincethe ofthe attaching ears 36 and 32. In this conapex .of the guard presents its concave face tothe thread and is disposed slightly above the uppermost point of the eye. When the shuttle is in use the thread is fed directly from the copfover the rounded shoulder .47 through the guide slot 25, and out through the eye 21. A. longitudinally extending groove 50 is of course provided in the face of the shuttle for the usual purpose of receiving the thread.

Having thus described the invention, what is claimed as new is A threading device for loom shuttles comprising a tubular member having an eye and a tongue at one end `and having a 'portion partly cut from a side of the eye and bent outwardly to form an attaching ear and havingthe tongue projecting `into the cut away portion of the eye, said tubular member having a longitudinal opening formed in -a side of its opposite end portion in the rear of the eye, a longitudinally flared and partially twisted beak in the rear of the eye and spaced from the tubular member, and a second attaching ea'r at the end of the tubular member opposite that provided with the eye. 1n testimony whereof ll ax my signature Vfree end of the thread. 1t V 

